If I had a dollar for every person who has lived their entire life in a high-income western country (US, Canada, western Europe, etc) and has zero personal experience in developing-nation telecom/ISP operations and their unique operational requirements, yet thinks they've qualified to offer an opinion on it...
People should go look at some of the WISPs in the Philippines for an example of ISPs building last and middle mile infrastructure on extremely limited budgets. Or really just about anywhere else where the residential broadband market has households where the entire household monthly income is the equivalent of $500 USD.